Resilient ventilated insole and middle sole



M MARGDLEN RESILIENT YENTILATED INSOLE AND MIDDLE SOLE Filed Oct. l5, 1946 mm x INVENTOR ATTORNEYS.

Patented Aug. 24, 1943 v f tastiest RESILIENT-VENTILATED' rnsose AND V l MIDDLE sore Meyen ar onn-mgin, Ill. v v V Application October 15, 1940', Serial Ne; 361,204;

1 Claim. rel. 36-3) My invention relates to a novel: insole construction and more" particularly my invention relates to an insole having a resilient insert located in an opening in. said insoIeQthefresilient insert. having downwardly extending pro jections adapted to either rest on. the outsole or to pass through. suitable matching openings in the outsole and contact the walking sur- 7 face. .7

It is the general" object of my invention to provide a resilient. insole construction adapted to provideibrc'ed breathing within the shoe and to' provide greater resilience and foot comfort- It. is a further object of my. invention. toprovide a; novel insole construction comprising an insole with an opening therein, a. resilient insert. located in the opening. grooves havingspaced side walls located on the underside of said in.- sert, downwardly extending lugs or projections adapted to rest on the outsol'e beneaththe in.-

sole and air communicating perforationslocated.

in said insert; either. between or in said grooves. It is' a further object oi my invention taprov'ld'e a novel insole construction comprising an insole, an opening inthe insole; a resilient insert adapted to fit within that opening and; to be.

secured therein by a peripherally extending. lap.

on said insert, said insert beingoff greater thick ness inthat portion of. it which corresponds to the opening in the insole than the thickness of the peripherally extending lap and the insole to which that lap is attached.

It is aiu-rther object of my invention. to provide a novel insole constructionirr which I provide an insert for an insole having downwardly projecting resilient lugs or difierent cross sectional shapes;

It is a furtherobieot of my invention to provide a novel insert for aninsole having a combination of grooves and lugswhich coact so as Figure 2 is a cross section taken along the line 2-2 oi Figure l but with the outsole applied. V e g 5 g Figure 3'is a cross section of a modified" fo of my invention.

Figure 4 is abottom view of a modified; form of a resilient insert of my invention.

Figure 5 is a cross section taken along the line 5-5 of Figure 4.

Referring now more specifioallyto the draw-- ing, in .l igurev 1 I show an. insole: 1!! having an opening in the iorepart oi that insole. In that opening is disposed a resilient insert generally 1 denoted as H. The resilient insert comprises a relatively thick central'portion I2 with a peripherally extending lap [3. The lap 13 extends over the insole m; and is secured thereto by lines of stitching M and I5.

central portionof the resilient insert [2 are located grooves 18 having spaced" side walls l9 and 20.. Preferably the grooves such as [8 are closed at their ends. as. by end walls 22 and 23*. Pertorations 24 extend through the rela-' tively thick portion 12 of the insert and provide air communication between the bottom .of the insole and the shoe interior.

to cause forced breathing within the insole and shoe.

It is still a further object of my invention 1 to provide an insert for an insole, which insert has: integrally associated therewith a fabric reinforcing member adapted to prevent the destnretion and permanent defoming of my novel insert having lugs and grooves in the course of its use the shoe. 7 These and further objects oi my invention will beapparent from a consideration of the drawing and "the specific description" thereof whieh here follows.

Figure 1 is a bottom View of a resilient inser and insole of my invention. 7 x

" be employed.

At the rear of .the opening in the insole the peripherally. extending lap i3 is enlarged to f'As shown in the groove 26, I may provide perforations 21 located in the groove to enable air to he forced directly from the groove upwardly into the shoe interior.

[Located in and over the groove are down-.

wardly projecting lugs 3d and between the grooves is provided a downwardly projecting resilient lug 3!.

provide a flap 33 onwhich is positioned a re: silient metatarsal 34' having perforations 35 located therein for increasing the. resilience of thismetatarsal support. The metatarsal support is located on theiiap on the top of the insole and therefore shown in dotted lines.

As shown Figure 2 the lugs 30 and 3| may extend through suitable openings 45 in'the outsole 4!...

Similarly the lugs 32' ma extend through suitableopern'ngs in the outsole. In

the case of the lug 3"! under the downwardly exerted compression of the ballof the foot in walking, the'upper portion 42 of the lug. 3[ is compressed thereby compressing adjacent grooves 43 and 44 so that air is forced. from these grooves through suitable perforations such as the perforation 45' in. the groove "4 '3- to the interior of the shoe.

In the thick A' plurality of such lugs may.

In the form of my invention shown in Figure 3 the lugs rest on the outsole and do not pass therethrough. In this construction the compression exerted by the ball of the foot in walking compresses the lugs 59 and M so that the air cell 52 is also compressed, whereupon air flows from this air cell through the perforations 53 into the interior of the shoe. The air cell is bounded by the insert on top, the outsole below and the peripheral portion where theinsole or the insert meets the outsole. The compression of the lugs and El also acts to compress the adjacent grooves such as 55 and 5%, the side walls of these grooves being moved toward one another so that air is forced from these grooves 55 and 56 through suitable perforations such as perforations 5'! in groove 55 into the interior of the shoe.

When there is no perforation in the groove it- I of the grooves, and by the compression of the.

resilient air cell portions which are provided as shown in Figur 3. The forced breathing is obtained by the compression of the air cells between the insole and the outsole and also by the compression of the grooves having spaced apart walls, the compression of the grooves being effected both by theirfiexure in the act of walking when the foot moves back, and forth and by their compression when the weight of the foot periodically com: presses the lugs adjacent to these grooves.

The perforations which are located either between the grooves or in the grooves as shown at 553 and 5? act to permit air to flowfrom its source beneath the resilient insert to the shoe interior where it is needed.

As shown in Figure 3,, while the ends of the lugsQsuch as lug 59, may be flat, I also provide that the ends may terminate in a cup shaped form and this cup shaped form, as shown at 5i, increases the resilience of my construction in that the downward compression of the lug 58 is extended and also because the air held within the cup shaped end of the lugfiil is forced outwardly under the compression of the lug and air is drawn into that cup shaped member upon release of the compression. Since the. forced breathing is an important element of my invention, this cup shaped form adding to the breathing effect as it does is an important feature.

Although not shown a cover may be and usually,

is provided over the insert and insole and this cover should be either porous to the flow of air or shouldhave perforationslocated therein corresponding to the perforations in the insert.

In Figured I show a bottom view of an insert of my invention and it will be noted that the lugs may have a cross sectional shape of for example diamond shape as shown at 52 or oval shape as shown at 63. These lugs of non-circular cross section are of value since they have a tendency to spread and provide increased compression of the grooves adjacent thereto.

As shown in Figure 5 the central portion 63 of the resilient insert is thicker than the extending lap portion 64 and this central portion 63 of the resilient insert is thicker than the combined thickness of the extending lap portion 64 and the insole (not shown) to which it is attached. Thus I provide a ball cushion support by means of my resilient insert and, further, the air is forced from the middle or thicker portion of the insert outwardly to the perforations at the sides of the insert and thence to the shoe interior. By this construction greater resilience is afforded in the central or ball portion of the foot where it is most needed.

As also shown in Figure 5 I provide a fabric member 65 which may be molded integrally with my insert or suitably combined therewith. This fabric (it lies in the insert above the grooves and the fabric 65 may be provided with perforations therein corresponding to the perforations 65 located in the insert. I have found this fabric insert of great utility in my particular construction because of the constant flexing of the grooves under the action of the foot, since the compression by the lugs might tend to permanently deform the same. The fabric insert 55 tends to maintainthe insert against spreading under continued compression.

Although I have shown the grooves as being enclosed at the ends, it is within the purview of my invention to have the grooves open ended. I have found, however, that better air flow is obtained when the ends of the grooves are closed. It is important, however, that the side walls or long walls of the grooves be spaced one from the other. I

It is further within the purview of my invention to have the grooves intercommunicating with one another. Additionally I may provide grooves ex-' tending in directions other than substantially transversely across the insert.

As shown in Figure 1 by using my resilient insort in combination with a resilient heel pad as is more particularly setforth in my co-pending application Serial No. 354,496 I provide a complete heel to toe resilience in the shoe and forced The specific construction of my resilient insole which I have above set forth may be modified by those skilled in the art and the various features may be used alone or in combination with oneanother. I intend, therefore, to be limited not by the specific description above set forth, but only by the appended claim. I

This application is a continuation in part of my co-pending application Serial No. 306,778, filed November 30, 1939 for Novel insole and outer sole combination. I a

I I claim:

A resilient insole, transverse grooves positioned on the bottom of said resilient insole, the walls of said grooves being spaced apart from one another, the ends of said grooves being closed, said insole having at least one downwardly extending resilient projection located in at least'one of said grooves, said resilient projection being located between the end walls of said groove and being in direct contact with the opposing long side walls of said groove.

MEYER MARGOLIN. 

